In theory, a mechanical seal should last until _____
a. the carbon face has worn away
b. the spring wears out
c. 40,000 shaft revolutions
d. the seal faces separate
a
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Toward the end of the 19th century, it was common to see giant combines pulled by teams of over ____________________ draft horses.
Fill in the blank(s) with the appropriate word(s).
For the circuit in Fig. 7.113, is(t) = 5u(t). Find v(t).
Technician A says that coolant is normally a dark brown color. Technician B says to periodically inspect the radiator for obstructions. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Technician A says that front shock replacement on most vehicles requires a special spring compressor. Technician B says that front shock absorbers can be replaced with the weight of the vehicle on the wheels. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician